有源补偿同相供电系统牵引变压器接线方式选择  

Optimal Selection of Traction Transformer in Cophase Power Supply System Based on Active Power Filter

作　　者：吕晓琴[1] 张秀峰[1] 章春军[1] 方华[2] 

机构地区：[1]西南交通大学峨眉校区,四川峨眉614202 [2]德阳市电业局,四川德阳618000

出　　处：《电测与仪表》2013年第7期72-76,共5页Electrical Measurement & Instrumentation

摘　　要：有源补偿同相牵引供电系统,所需补偿装置最小容量与变压器接线方式无关,采用常规接线变压器具有一定的工程意义。利用平衡补偿原理,分析出YN,d11、V,v和Scott常规接线构成的同相供电系统变压器容量需求与负序和无功补偿度、负荷功率因数角、负荷接线角以及变压器移相角有关。通过在指定无功补偿度下,变压器容量利用率与负序补偿度关系曲线,选择合适的接线方式,使其具备最佳经济指标;通过系统仿真波形,验证在正确的控制方法下,无论采用何种常规接线变压器,均能得到较好的补偿特性。The minimum capacity of compensation device in cophase power supply system based on active power filter has no relation with transformer connection,so using normal connection is significant.Under cophase power supply systems with YN,d11,V,v,and Scott transformer,this paper analyzes based on balance compensation principle that the capacity demands have relations with negative and reactive compensation degree,power factor angle,connection angle of load,and phase shift angel.Choosing right transformer connection from the curves between capacity efficiency and negative compensation degree under assigned reactive compensation degree can get the best economic indicator.Finally,with the simulations,it is shown that no matter which transformer is chosen,theoptimal selection can get right compensation characteristics with better control methods.

关 键 词：有源补偿 同相供电 变压器 接线方式 容量 

分 类 号：TM405[电气工程—电器]